Home / 870,035.68-1,200,704.40-488,087.20

Finding the Fourth Proportional to 870,035.68, 1,200,704.40 and 488,087.20

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Solution

The fourth proportional to 870,035.68, 1,200,704.40 and 488,087.20 is: 673,591.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,035.68 : 1,200,704.40 = 488,087.20 : x
  2. Step 2: Convert to fraction form
    870,035.68/1,200,704.40 = 488,087.20/x
  3. Step 3: Cross multiply
    870,035.68x = 1,200,704.40 × 488,087.20
  4. Step 4: Simplify right side
    870,035.68x = 586,048,448,623.68
  5. Step 5: Solve for x
    x = 586,048,448,623.68/870,035.68
  6. Step 6: Final answer
    x = 673,591.28

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.